Fire wall for furnaces



Nov. 4, 1930. A. A. LANE I FIRE WALL FOR FURNACES Filed pril '7. 192a MQW Imam/ g MM: ALEMW "I ,7 1 IIIIIIIIIJ Patented Nov. 1 4, 1930 UNITED STATES ABBOT A. LANE, OF NEW ROCHELLE, NEW YORK FIRE WALL FOR FURNACES Application filed April 7,

The present invention relates to an 1111- proved water wall for a furnace.

Among the principal objects which the invention has in View are: to provide a water wall comprising a plurality of vertical pipes broken by a header; to provide a header of aform such that the ends of the pipes may be conveniently and practically attached thereto; to provide a header of a generally inclined nature; to simplify and improve the construction.

In the drawings: Figure 1 is an elevational view partly in section to illustrate a preferred embodiment of the invention.

Figure 2 is an enlarged sectional elevational view of a fragment and portion of the construction illustrating the character of the header preferably employed.

Figure 3 is a plan view of the construction exemplified in Figure 1, the view being partially in section.

Referring now more particularly to the drawings, the invention in detail embodies a water wall for a furnace employing a bottom or feed pipe 10 from which extend vertically a plurality of pipes 11. The water is circulated through the pipe .10 and upwardly through the pipes 11. These pipes 11 are of the usual construction and may take any desired or preferred form. They are preferably also all of a standard length.

The tops of the pipes extend into and communicate with a water header 12, which as shown in Figure 1 is of a generally inclined nature and comprises horizontal portions 13 interconnected by inclined portions 14, the ends of the pipes 11 extending through the horizontal portions and being bent over or headed as at 15 and thus secured in service. This construction of the header is particularly advantageous in that it permits the ends of the pipes to be headed or beaded over on horizontal walls, and is a characterizing feai ture of. the invention. From a practical aspect the heading over of the ends of the pipes on a horizontal wall is almost essential because pipes cannot successfully be headed over on an inclined wall. Moreover it is necessary for a header to be generally in- 1928. Serial No. 268,032.

clined in character to provide a space for any steam which may be formed as well as to permit standard lengths of pipe 11 to be employed, and a good circulation of the water through the water wall takes place.

Extending upwardly from the top of the header 12 are other vertical pipes 16, the bottom ends of which extend through the horizontal portions of the header and are bent over or headed on the interior of said horizontal portions as indicated at 17. These pipes 16 in efiect form a continuation of the pipes 11 and there is provided a water wall of vertical pipes broken by an intermediate header. Another desirable function performed by the header is to permit the employment of relatively short lengths of pipes in the water wall.

The use of long pipes in the water wall would be undesirable as such long pipes would be impractical and there would tend to form in such pipes steam pockets which would impair their operation. It will be understood that the tops of the pipes 16 extend into another horizontal pipe similar to the pipe 10 and that a continual circulation of water through the pipes obtains.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

A water wall for furnaces comprising a lower feed pipe, a plurality of vertical pipes extending upward from said feed pipe, a header at the tops of said pipes and secured thereto, said header being of a generally inclined character and having spaced parallel upper and lower walls including spaced horizontal wall portions and inclined portions connecting said horizontal portions, the tops of the vertical pipes extending through the bottom horizontal wall portions and being bent over on the interior thereof, and other vertical pipes projecting upwardly from the header and communicating therewith, the lower ends of said last mentioned pipes extending through the top horizontal wall portions of the header and having their ends bent over on the interior of said header, substanti ally as described.

ABBOT A. LANE. 

